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arXiv · 2510.19280

The universal size compression effect of nucleon pair in finite nuclei

Qing Zhao·Masaaki Kimura·Bo Zhou·Seung-heon Shin
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Abstract

We systematically investigate the size evolution of the di-neutron (2n), di-proton (2p), and deuteron (d) in 6He, 14Be, 17B, 6Be, 17Ne, and 6Li using microscopic calculations. Remarkably, all nucleon pairs exhibit a universal size compression at the nuclear surface, regardless of their species and binding energies. These features correspond to the BCS- and BEC-like nucleon pairs, which recent experimental techniques can further investigate.

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Qing Zhao, Masaaki Kimura, Bo Zhou, Seung-heon Shin. 2025-10-22. The universal size compression effect of nucleon pair in finite nuclei. https://arxiv.org/abs/2510.19280

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